解決方法：
在babel.config.js中添加：
presets: [ [ "@vue/app", { useBuiltIns: "entry" } ] ]
module.exports = {
presets: [
// https://github.com/vuejs/vue-cli/tree/master/packages/@vue/babel-preset-app
'@vue/cli-plugin-babel/preset',
[['@vue/app', { useBuiltIns: 'entry' }]]
],
'env': {
'development': {
// babel-plugin-dynamic-import-node plugin only does one thing by converting all import() to require().
// This plugin can significantly increase the speed of hot updates, when you have a large number of pages.
// https://panjiachen.github.io/vue-element-admin-site/guide/advanced/lazy-loading.html
'plugins': ['dynamic-import-node']
}
}
}
https://blog.csdn.net/weixin_46653941/article/details/121353227
